Why is my idle air control valve not working?
You may have a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and at idle.
Why does my Car start but not stay running at idle?
Once it starts, as long as my foot is on the gas, it stays running. The second my foot is taken off, it turns right back off. My car has 20000 miles. My car has an automatic transmission. You may have a dirty or failing idle air control valve.
Can a bad IAC cause an engine to stall?
A faulty IAC can starve the engine of air at idle, resulting in stalling. Engine Won’t Start Although rare, there are instances where a faulty IAC can throw off the air/fuel mixture enough to prevent the engine from starting.
What causes rough idle after replacing mass air flow sensor?
Replaced air filter and maf sensor. Problems with vehicle turning off seemed to go away but now I have a rough Idle. Car will drop below 1000 rpms and then rev back up to over 1500 like it wants to shut off. Idle problems seem to go away when maf sensor is disconnected. Car throwing codes p0171 and p0102.
Is the idle air still working on my Camry?
Just replaced the idle air control valve and still have issues starting!!! A few weeks ago I noticed when I would start the car the idle would get very low then stall. Only by really giving it some gas would it start and stay running.
Why is my car not running at idle?
Running fine at idle and low speeds around town but struggling and stalling under on-ramp acceleration likely means low fuel pressure. It has enough for idle, but can’t keep up as RPMs increase under hard acceleration. Then the engine starts up again because startup requires little fuel.
Why does my ATV not idle after a cold start?
If the ATV doesn’t idle well or often stalls after a cold start but runs fine as soon as it warms up, it may be worthwhile having the valves inspected and adjusted. The rough idle may be caused by a valve that is opening too late, choking off fuel. When the engine keeps stalling or bogs down or stalls when applying throttle
What to do when your car engine won’t start?
In this case, check the fuel pressure from the fuel pump. Surging and stumbling at medium load can also be due to a faulty EGR valve. If the engine only stalls when turning, that means you should look for a failing idle air control (IAC) valve.